#include<iostream>
#include<cmath>
#include<format>
using namespace std;
int main(){
  double a,b,c,x1,x2;
  cin>>a>>b>>c;
  double flag=pow(b,2)-4*a*c;
  cout.precision(5);
  cout<<fixed;
  if(flag<0)cout<<"No answer!";
  else if(flag==0)cout<<"x1=x2="<< -b/(2*a);
  else{
    flag=sqrt(flag);
    x1=(-b+flag)/(2*a);
    x2=(-b-flag)/(2*a);
    if(x1>x2)swap(x1,x2);
    cout<<format("x1={:.5f};x2={:.5f}",x1,x2);
  }
}  